In fact, this is mainly due to the following reasons:
First: When the waiter serves rare steak and rare steak, he always makes mistakes. Because the steak is only one point short, it is difficult to tell, even the waiter working in the steakhouse is difficult to tell. Even chefs are often unsure. So, even if you order a medium-rare steak at the steakhouse, you will still get a medium-rare steak in many cases.
Second: In fact, many people don't know. In fact, the degree of steak is not even, but odd, that is, we say medium rare, medium rare and so on. And there is no such thing as medium rare. So in some high-end restaurants or more formal western restaurants, if you order a medium-rare steak, the waiter will not tell you that there is no medium-rare steak, but directly note the medium-rare steak behind your order, that is, by default, you order a medium-rare steak. So that customers will not be embarrassed by this problem. However, if you are in some low-end restaurants or meet some special waiters, you may just say that your steak is rare. In this case, I believe that if you bring your girlfriend, you will feel ashamed.
So if you go to a western restaurant with your girlfriend or business partner, you still need to know some cultures of some western restaurants, so that there will be no embarrassing scenes. You can also make the other person think that you are a knowledgeable person and so on. In short, it can leave a good impression. But if you are with family and friends, it doesn't matter. Because the relationship is close, if you encounter embarrassing things, everyone will tease each other and won't feel really humiliated. And like some high-end restaurants, the taste of customers is the most important. Even if you really want a medium-rare steak, you can cook it for you. You won't stop cooking it for customers just because it's not well-done.